White Vinegar is amazing stuff. It will loosen up stuck engines. I tried a lot of different things to unstuck on old 8N tractor t no avail. A friend suggested White Vinegar, which had it loose in 2 days, poured in the plug hole. Good Luck, Ray All right folks, time's awasting! This OK Meet will be a good'un, don't miss it! Lets get those Meet Registrations in soon, give poor Gloria a break and don't wait 'til the last few days. Way more rooms booked than members Registered! See Ya there!! On Sep 7, 2006, at 9:12 AM, whuff wrote: > I have dealt with a few stuck engines before, and I believe it > matters how or why the piston is stuck. Some of my experience was > with early inboard-outboard boat motors, they tended to stick from > salt induced corrosion build up between the rings and the piston > causing a mechanical bind. Usually I found the cylinder wall in good > condition once the piston was freed. If the piston is stuck from the > rings corroding to the cylinder wall, in my experience, that cylinder > will need a re-bore due to pitting. If that is the case, usually > breaking the piston to get it out is a time saver, since it won't be > reused. I have heard from some old-timers a long time ago (so old > they are probably gone by now) that cleaning all the grease out of > the bore and pouring vinegar in will loosen the piston. Never tried > it. Good luck. > > Bill Huff > > At 9/6/200610:42 PM, Thomas Miller wrote: > > >Howdy Folks. > > > >I'm currently disassembilng for rebuild a 392 cu.in. FirePower > >engine that has one stuck piston. Upon removing the heads of this > >engine, I found 7 cylinders full of oily, sludgy goop. One cylinder > >was dry and corroded and stuck. This engine has been sitting for > >quite some time with a large dose of water in its crankcase. I > >surmise that along the way as this car sat for many years, someone > >just took the garden hose, stuck it in the oil filler and filled it > >up (the transmission was also full of clear water along with > >ATF....). Upon, pulling the oilpan drainplug, I got about a gallon > >of straight clear water, then a healthy dose of the same oily, > >sludgy goop that sort of just glugged its way out of the pan. I'm > >certain that the water I mention here is NOT from a leak or crack > >between the oiling and cooling systems of the block, since the > >cooling system was quite dry when I got this car, and the radiator > >was quite full of rusty scale etc. as you would expect from a > cooling system > >Anyway, with the events leading up to now, I'm wondering if the > >minds gathered here would share any successful receipies for > >unticking the lone stuck piston here. I've removed the rod bearing > >cap for the stuck piston, and the rest of the rotating assembly > >turns just fine. I'm just "stuck" with this one stuck piston. I'm > >trying to be careful how I go about this as the other 7 cylinders > >exhibit practically NO ridge at the tops of the cylinder walls. If I > >can get away with not having to bore this block and replace the > >pistons, I'd like too. I've been constantly soaking the stuck > >cylinder with penetrating oil, but can't get a whole lot of it on > >top of the piston as it's stuck right at top dead center of it's > >stroke. I've been after it for a couple of days now, alternating a > >good soaking of penetrant and then giving it a good WHACK with a > >mallet via a pice of scrap 2 x 4 on it's top. > > > >So, with all that said, what's worked well for unsticking stuck > pistons?! > > > >Thanks in advance. > > > >Sign me, "Stuck in Columbus" (sorry, I couldn't resist....) > > > >Best Regards, > > > >Thomas F. Miller > ><mailto:tfm%40zippynet.com>tfm@xxxxxxxxxxxx > >'57 300C, '57 New Yorker T&C Wagon(s) > > > > > > [Non-text portions of this message have been removed] > > > > [Non-text portions of this message have been removed] To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/